STEVAL-ISQ010V1 STMicroelectronics, STEVAL-ISQ010V1 Datasheet - Page 12

• Manufacturer Part Number: STEVAL-ISQ010V1
• Description: BOARD DEMO TSC102
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-ISQ010V1

• Channels Per Ic: 1 - Single
• Amplifier Type: Current Sense
• Output Type: Single-Ended
• Slew Rate: 0.4 V/µs
• -3db Bandwidth: 800kHz
• Current - Output / Channel: 30mA
• Operating Temperature: -40°C ~ 125°C
• Current - Supply (main Ic): 420µA
• Voltage - Supply, Single/dual (±): 3.5 V ~ 5.5 V
• Board Type: Fully Populated
• Utilized Ic / Part: TSC102
• Input Voltage: - 16 V to + 60 V
• Operating Supply Voltage: 3.5 V to 5.5 V
• Product: Power Management Modules
• Supply Current: 450 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TSC102
• Other names: 497-10520

Parameter definitions
6
6.1
6.2
6.3
12/24
Parameter definitions
Common-mode rejection ratio (CMR)
The common-mode rejection ratio (CMR) measures the ability of the current sensing
amplifier to reject any DC voltage applied on both inputs V
back to the input so that its effect can be compared with the applied differential signal. The
CMR is defined by the formula:
Supply voltage rejection ratio (SVR)
The supply voltage rejection ratio (SVR) measures the ability of the current sensing amplifier
to reject any variation of the supply voltage V
that its effect can be compared with the applied differential signal. The SVR is defined by the
formula:
Gain (Av) and input offset voltage (V
The input offset voltage is defined as the intersection between the linear regression of the
V
V
V
The amplification gain Av is defined as the ratio between the output voltage and the input
differential voltage.
a1
os
sense
can be calculated with the formula:
versus V
= V
sense1
sense
= 50 mV and V
curve with the X-axis (see
V
os
=
SVR
CMR
V
sense1
Doc ID 16754 Rev 2
a12
=
=
–
Av
–
–
20
is the output voltage with V
20
⎛
⎝
V
----------------------------------------------- -
⋅
=
sense1
⋅
log
V
----------------- -
V
log
V
a11
sense
---------------------------
ΔV
out
------------------------------
ΔV
Figure
–
–
CC
ΔV
cc
V
V
icm
ΔV
. The SVR is referred back to the input so
⋅
sense2
a12
a1
a1
⋅
Av
Av
18). If V
⋅
os
V
)
out1
p
a11
and V
⎞
⎠
sense
is the output voltage with
m
. The CMR is referred
= V
sense2
= 5 mV, then
TSC102